def convertFile(self):
try:
if self._pictureThere:
# Converts the argument image to black and white
from images import Image
image = Image(self._textField.getText())
blackPixel = (0, 0, 0)
whitePixel = (255, 255, 255)
for y in range(image.getHeight()):
for x in range(image.getWidth()):
(r, g, b) = image.getPixel(x, y)
average = (r + g + b) / 3
if average < 128:
image.setPixel(x, y, blackPixel)
else:
image.setPixel(x, y, whitePixel)
image.draw()
else:
print("uhhhhhhhh no image there")
except Exception:
self.messageBox(
title="ERROR",
message=
"THERE IS NO FILE INPUTTED. \n PLEASE ENTER A FILE NAME.")
def enlarge(image, factor):
"""Builds and returns a copy of the image which is larger
by the factor."""
oldWidth = image.getWidth()
oldHeight = image.getHeight()
new = Image(oldWidth * factor, oldHeight * factor)
oldY = 0
newY = 0
while oldY < oldHeight:
for countY in range(factor):
oldLeft = 0
oldRight = oldWidth - 1
newLeft = 0
newRight = new.getWidth() - 1
while oldLeft < oldRight:
leftPixel = image.getPixel(oldLeft, oldY)
rightPixel = image.getPixel(oldRight, oldY)
for count in range(factor):
new.setPixel(newLeft, newY, leftPixel)
new.setPixel(newRight, newY, rightPixel)
newLeft += 1
newRight -= 1
oldLeft += 1
oldRight -= 1
newY += 1
oldY += 1
return new
def rotateRight(image):
"""Rotates the image 90 degrees """
newImage = Image(image.getHeight(), image.getWidth())
for y in range(image.getHeight()):
for x in range(image.getWidth()):
(r, g, b) = image.getPixel(x, y)
newImage.setPixel(image.getHeight() - y - 1, x, (r, g, b))
return newImage
def blackandWhite(Image):
blackPixel = (0, 0, 0)
whitePixel = (255, 255, 255)
#
for y in range(Image.getHeight()):
for x in range(Image.getWidth()):
(r, g, b) = Image.getPixel(x, y)
average = (r + g + b) // 3
#
if average < 128:
Image.setPixel(x, y, blackPixel)
else:
Image.setPixel(x, y, whitePixel)
def sepia():
picture = Image("smokey.gif")
for y in range(picture.getHeight()):
for x in range(picture.getWidth()):
(red,green,blue) = picture.getPixel(x, y)
if red < 63:
red = int(red * 1.1)
blue = int(blue * 0.9)
elif red < 192
red = int(red * 1.15)
blue = int(blue * 0.85)
else:
red = min(int(red * 1.08), 255)
blue = int(blue * 0.93)
picture.setPixel(x,y,(red,green,blue))
def sepia():
picture = Image("smokey.gif")
for y in range(picture.getHeight()):
for x in range(picture.getWidth()):
(r, g, b) = picture.getPixel(x, y)
newR = (0.393 * r + 0.769 * g + 0.189 * b)
newG = (0.349 * r + 0.686 * g + 0.168 * b)
newB = (0.272 * r + 0.534 * g + 0.131 * b)
if newR > 255: newR = 255
if newG > 255: newG = 255
if newB > 255: newB = 255
picture.setPixel(x, y, (newR, newG, newB))
picture.draw()
def shrink(image, factor):
"""Builds and returns a new image which is smaller
copy of the argument image, by the factor argument."""
width = image.getWidth()
height = image.getHeight()
new = Image(width / factor, height / factor)
oldY = 0
newY = 0
while oldY < height - factor:
oldX = 0
newX = 0
while oldX < width - factor:
oldP = image.getPixel(oldX, oldY)
new.setPixel(newX, newY, oldP)
oldX += factor
newX += 1
oldY += factor
newY += 1
return new
def shrink(image, factor):
"""Builds and returns a new image which is smaller
copy of the argument image, by the factor argument."""
width = image.getWidth()
height = image.getHeight()
new = Image(width / factor, height / factor)
oldY = 0
newY = 0
while oldY < height - factor:
oldX = 0
newX = 0
while oldX < width - factor:
oldP = image.getPixel(oldX, oldY)
new.setPixel(newX, newY, oldP)
oldX += factor
newX += 1
oldY += factor
newY += 1
return new
def enlarge(image, factor):
"""Builds and returns a copy of the image which is larger
by the factor."""
width = image.getWidth()
height = image.getHeight()
new_image = Image(width * factor, height * factor)
for y in range(height):
for x in range(width):
color = image.getPixel(x, y)
new_image.setPixel(factor * x, factor * y, color)
new_image.setPixel(factor * x + 1, factor * y, color)
new_image.setPixel(factor * x, factor * y + 1, color)
new_image.setPixel(factor * x + 1, factor * y + 1, color)
return new_image
from images import Image
image = Image("smokey.gif")
image.draw()
print(image.getWidth())
print(image.getHeight())
print(image)
print(image.getPixel(0, 0))
image = Image(150, 150)
image.draw()
blue = (0, 0, 255)
y = image.getHeight() // 2
for x in range(image.getWidth()):
image.setPixel(x, y - 1, blue)
image.setPixel(x, y, blue)
image.setPixel(x, y + 1, blue)
image.draw()
image.save("horizontal.gif")
Python 3.8.4 (tags/v3.8.4:dfa645a, Jul 13 2020, 16:30:28) [MSC v.1926 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license()" for more information.
>>> from images import Image
>>> image = Image("smokey.gif")
>>> (r, g, b) = image.getPixel(0, 0)
>>> r
194
>>> g
221
>>> b
114
>>> image.setPixel(0, 0, (r + 10, g + 10, b + 10))
>>> def average(triple):
(a, b, c) = triple
return(a + b + c) // 3
>>> average((40, 50, 60))
50
>>>
